CVE-2019-11708

critical

Description

Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxed parent process opening web content chosen by a compromised child process. When combined with additional vulnerabilities this could result in executing arbitrary code on the user's computer. This vulnerability affects Firefox ESR < 60.7.2, Firefox < 67.0.4, and Thunderbird < 60.7.2.

From the Tenable Blog

CVE-2019-11707, CVE-2019-11708: Multiple Zero-Day Vulnerabilities in Mozilla Firefox Exploited in the Wild
CVE-2019-11707, CVE-2019-11708: Multiple Zero-Day Vulnerabilities in Mozilla Firefox Exploited in the Wild

Published: 2019-06-19

Security researchers discover two zero-day vulnerabilities in Mozilla Firefox used in targeted attacks. Editor’s Note: This blog was updated on June 20 to reflect additional information regarding a second vulnerability used in combination with CVE-2019-11707, as well as security updates from Mozilla. 

References

http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1559858

https://security.gentoo.org/glsa/201908-12

https://www.mozilla.org/security/advisories/mfsa2019-19/

https://www.mozilla.org/security/advisories/mfsa2019-20/

Details

Source: Mitre, NVD

Published: 2019-07-23

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 10

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Severity: Critical